diff --git a/config/mail.php b/config/mail.php
index e652bd02..d7416b15 100644
--- a/config/mail.php
+++ b/config/mail.php
@@ -59,6 +59,7 @@
 
         'postmark' => [
             'transport' => 'postmark',
+            // 'message_stream_id' => null,
             // 'client' => [
             //     'timeout' => 5,
             // ],